I have a 2018 Chevy Explorer conversion van and noticed that when I get above speeds of 50mph, the whole van shakes violently including the steering wheel. It started when I hit the brake, but now it is happening without hitting the brake. I brought it to a "CERTIFIED" Chevrolet dealer and a "CERTIFIED" chevy technician examined the situation and determined that I need all for rotors replaced and that is the cause.....Well, the rotors were replaced and the van is still vibrating violently. I brought it back to them and the "certified" technicians are unable to find the cause, stating that they have looked at everything. So how can the issue be rectified?.
You're talking about an Express van right? (Explorer is the conversion company). It would help if you mentioned the exact model (2500, 3500...)
If the shake from warped rotors was violent, there's a good chace that wore out your steering linkage or bearings. Maybe even suspension.
Yes, it's a 2500. Issue was resolved. Tires!
Did you change the tires, or did they become out of round?
Chevrolet Techs tested the tires by replacing them with tires from another van, then took it on the highway at different speeds and had no issues. They put my tires back on on the van shook violently once again. I purchased new BF Goodrich tires all around and having no issues.
and they were fine before?
As I stated in my initial post, the whole van shook when I went above 50 mph. I think it happened when I had the van sit for 3 weeks with snow building up on it. I was snowed in. Had flat spots on two of the tires.
weird. Flat spots from sitting 3weeks shouldn't be permanent.
Well. Whatever it was, seemed to fix the issue when the tires were changed out.
I am sorry.... I said "flat spots" ..... I just looked at the diagnostic report from chevrolet .... it says "tire runout" on 2 of the 4 tires and "broken belt" on front passenger tire.
What was the old tyre brand? 3 yr old tyres with broken belts..
Pirelli Verde
Rotors usually only cause that behavior when braking if they are warped. Sounds like you have a tire with a broken belt in it or its out of balance. Have tire place check em or rotate front to back and see what happens. Also jack up each side and with the wheel off the ground grab it at 9 and 3 see if you can wiggle the tire any, do it again at 12 and 6. If you have any wiggle its ball joints or tie rods.
Okay....I will tell the "CERTIFIED" mechanics to try that. Something that I don't think they did because it wasn't mentioned to me about all that they did. Thanks again! 🙂
"Certified" means uninspected or inspected by incompetent techs.
I agree in this case. They have "no idea" ... I even asked them to look at some things and they say.... You're a mechanic? You think that they saw this kind of problem before!
Certified means they drove it across the street to the drive thru for lunch. Yep gas pedal worked. Got there and back. No problem. 🤣
It could be a lot of things. First off, it's a conversion van so it's heavier than normal, are your tires load rated for the extra weight, also if it sits a long time your tires could be flat-spotted, out of balance. There's an older couple in our neighborhood that have one of those conversion vans. It sits a long time between use, and what they do is have it slightly jacked up to keep the tires from flat-spotting.
It used to do it when applying the brakes; if driven long enough that way, could've damaged ball joints and/or tie-rod ends because now it's doing all the time even after replacing the rotors. Like already mentioned, jack up the front and grab each tire at 12 & 6 and then 9 & 3 and see and listen if there's excessive movement. And wouldn't hurt to have the wheel alignment checked as well.
Most technicians at "certified" dealerships, don't really know how to diagnose problems anymore; if their scan tools doesn't come back with any codes they're lost. I would find a good recommended independent shop in your local area.
